Needle loom



E Jan. 20, 1931. J. c. BROOKS. E 1,789,512

' NEEDLE LOOM Filed Nov. 21. 1927 2 Sheets-Sheet '1 Fig.1.

lnvenTor".

\John C. BrooKs byWMk-ZCM Aflys.

V spectively of the port hole caps...

Patented Jan. 20, 1931.

- 7 JOHN cmnooks, or rn'rnnsoiv, NEW-Jansen:

TmEiSt ILQQ F mman filedli'ovember '21, s27fj seria 1vo. 234,721.

kindsv of fabrics.

I attain these objects by, in this instance, mechanism shown in accompanying draw-,

ings and described and claimed in this specification. I p

Fig. 1 is a front view, in elevation, of suf ficient parts of the loom toillustrate myinp p 7 avroller 53,:engaging 1n al'cam 54, secur'edon I vention.

7 9 Fig. 2 is a side view of one of the brackets.

Fig. 3 isa similar view of the same brackets with the port holes operating mechanism attached thereto. i

Fig. 4 is a longitudinal sectional view of a part of the air cylinder'with a portion of one of the needles. 7

Fig. 5is a side view of the filling engaging end of the needle.

, Fig. 6 is a cross section view of the needle.

9 through dotted line XX of Fig. 5.

Figs. 7 and 8 are top and side views, re-

Fig. 9 is a side viewfof one form of cam, lever and rod, to operate. the mechanism.

Construction secured therein by screws 7, 8, are airreceivr ing cylinders 9," 10,;provided with threaded caps 11, 12, 13, 14,;havinga1r inlets, 15 and air ports, 16, 17

Pivotedoon brackets 1, 2, are port caps,

19, provided with' mats, 20, 21, and in theirfree ends slots 22.

. 5 22 is a rod 23, prov1ded with spiralsprings 24, 25, held in adjustable tension by collars 26, 27. Also on rod 23 are collars 28, 29, enga ing below slots 22 of caps 18, 19.

r I v upport ed in holes 4, 5, are shafts 30, 1

9 provided with slotted arms 32, 33,- between cylinders-through caps 12,14-

Secured on rear 7 of batten A are vertical brackets 1,2, providedwith V 7 holes 3, 4, 5, 6. Supported in holes 3, 6,'an d' slacken thefilling threa Engaginfg in said slots,

whichpa sse srods Above and below p 35 secured on said;

slotted arms are'collars 34, r0ds 23.-

At the outer end' 'of shaft 30 is 'aleveriarm i 36,;prov'ided'with zrod'37,fengaging alever 5 5} arm 38,1.operating an'air cock 39,.1pr'ovided. with an'air inlet 40,,conne'cted to any source cylinders 0 gAt' the inner end' shaft '81, aim 43, rod '44, lever 45, air qc'ockij46, inlet-47, and tubes 48, 49, JOiningsaid-COck 46 toi' air 1 SeCuredon-ShaftBO is a lever arm50, provided with a rod; 51, engaging 3161 61252,- ivoted-to the loomfframeand providedwith 100m shaft B. .Onshaft 31 is a lever -arm 5 5, rod 56, lever 57, with a roller engaging'yrwithin cam 58jon shaftB; I 5

Onthe butt or head endof theneedle is secured a flange61,against whichis placed placed next to washer 62 but overlapping a loose flange 64. A nut 65, serves tosecure thesefianges and washers together and form a double acting piston with whichto recipro eo' catetheneedles. I v 5 V Q l he needlesare-flattened asiat 66, Fig. 6, r

to preventthe rotation. during operation ,the -.caps;12, 14 having corresponding holes there? fonifuygurf g l 35 j The long filling eye, ,67,serves tov slightly d to facilitate the ac-j ti on 'of the filling; catching needle,j;or the l o -T f 1 J enlarged under. portion, 68, "serves to very wide fabrics.

The cam- 54 operatesto 'open cock i -1 .PQ SQlQ p oi tm ri i hin th 9.51 7' V warp sheds. Cam 58 ope'ns cock 46 andouter h 1.

puts return h n e t their nQrmaI posit-ion; v, V 7 V Thelocation'of ports withlrespect I ends of, the-air cylinders, determinative by -191 f" ,"7 7

edge formingshuttle in generaluse inneedle V T I. Y

S p and'g e waw wh n wea n I v r the speed of operation and amount of cushunderstood from theopening the exhaust ports at end of the cylinders.

This will cause the piston to move toward the left thereb pro- ]ecting the needles GO-through the she s. As the shaft -B continues to rotate, the shaft Y will be actuated to close the valve 39" and to 1 Having described my invention, I claim---- I lower the rod 23 to close the exhaust ports at the left-hand end of the cylinders.

The rotation of the cam 58' will operate throu h the connections 56 and shaft" '31- to open 51c valve 46 to allow compressed airto i enter the left-hand ends of the cylinders and at the same time the: exhaust valves at the right and end of the cylinders will be opened w erebyth'e needles are withdrawn from sheds.

The device, therefore, has-'means common'to one inlet valveand the corresponding exhaust valvesto operate them simultaneously, and other means common tothe other inlet valve and the corresponding exhaust valves to opcrate them simultaneously.

1. In a loom, the combination with a batten, of two cylindersgmrried thereby, one above the other, a piston in each cylinder; a; weft-inserting needle actuated by each is ton, two separate inlet valves, one controlling thead'mi'ssion'of compressed air to one end'of both cylinders and the other controlling the" admission of compressed aid to the other end Vofboth cylinders, each cylinder-having exhaust valves, means common to oneinlet valve and the corresponding exhaust valves to eperate them simultaneously; other means commento the other inlet valve and correspond-- ingexhaust valves to operate them simultaneously and devices to actuate said means alternatively.

I '2. In a loom, the combination with a bat-- ten of two cylind'ers carried thereby, a piston'in each cylinder, .a weft-inserting needle actuated by each piston, two separate inlet rvalveaone controlling the admission of com pressed airvto the sameend ofbothcylinders inders, each cylinder having two exhaust ports, an exhaust" valve for each port, two rock shafts, connections between one rock shaft and one inlet valve and the corresponding exhaust valves, and betwen the other rock through the connection the pistons, each the left-hand shaft and the other inlet valve and corresponding exhaust valves, ating said shafts'to cause the inlet valves to be opened alternately and in tuned relation with the inlet valves.

3. In a loom, the combinationrwith a batten, of two cylinders carried thereby, a piston in cylinder, a weft-inserting needle actuatedby each piston, means for admitting compressed air to said cylinder simultaneously tliereby to simultaneously actuate piston having an exhaust port in its side, a pivoted valve for each exhaust port, each valve having a slotted arm, an actuating rod operating in the slots of the arms, and means for actuating said, rod in timed relation with the operation of the inlet valve; or 7 JOHN (1- BROOKS.

' and the other controlling the admission of v compressed air to the other end of both the exhaust valves 7 and means for oper- 

